First there was Evermay. Then there was Halcyon House. Now another Georgetown estate may eventually take the honors as the most expensive home on the market in the city.

UrbanTurf has learned that plans are in the works to significantly renovate and expand the property at 1645 31st Street NW (map), and then put it on the market next spring for somewhere in the $15 to $20 million range. The price will depend on whether or not the new owner is able to execute certain renovations for the property, which will be based on approvals that they are still working through.

The historic property known as the Williams-Addison House consists of a 31,982 square-foot lot (approximately three­ quarters of an acre), a double brick house built in 1817, and an 1899 stable and carriage house (subsequently used as a garage and then altered for residential use).

For those that have been closely following the residential real estate beat in the city for the past several years, this is the home previously owned by former Washington Post executive Marc Teren. It was the subject of controversy in the neighborhood based initially on the fact that Teren wanted to build another house on the property, and then because it was an eyesore of start and stop renovations for several years. We understand that the new owner has less ambitious plans for the property.

The home will be listed by Anthony Bozzi of Stages Realty. We will update you with more details as we receive them.